DK403485A - PROCEDURE FOR MANUFACTURING S-SUBSTITUTED ISOTHIOUR INGREDIENTS - Google Patents

PROCEDURE FOR MANUFACTURING S-SUBSTITUTED ISOTHIOUR INGREDIENTS Download PDF

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Publication number
DK403485A
DK403485A DK403485A DK403485A DK403485A DK 403485 A DK403485 A DK 403485A DK 403485 A DK403485 A DK 403485A DK 403485 A DK403485 A DK 403485A DK 403485 A DK403485 A DK 403485A
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Prior art keywords
image
substituted
reacting
preparing
formula
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DK403485A
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Danish (da)
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DK157366C (en
DK157366B (en
DK403485D0 (en
Inventor
Dennis E Jackman
Dietmar B Westphal
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Mobay Corp
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Priority to DK403485A priority Critical patent/DK157366C/en
Publication of DK403485D0 publication Critical patent/DK403485D0/en
Publication of DK403485A publication Critical patent/DK403485A/en
Publication of DK157366B publication Critical patent/DK157366B/en
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Publication of DK157366C publication Critical patent/DK157366C/en

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Abstract

Process for preparing an S-substituted isothiourea having the functional group <IMAGE> in which R<1> represents an optionally substituted alkyl, alkenyl, aryl or aralkyl group, by reacting a thiourea containing the functional group <IMAGE> with an α-activated etherifying agent of the formula X-A-Y, where X represents a halogen atom, A is a direct linkage or CH2, and Y is an electron-withdrawing group, to give a thioether <IMAGE> and reacting the ether, in a second step, with a compound of the formula R<1>SH. The process is particularly well suited to preparing the known herbicide <IMAGE> from the corresponding thiourea by, in the first step, using chloroacetic acid to form the S- carboxymethylisourea, which is then subjected to an exchange reaction with ethanethiol. This thereby results in a higher total yield and/or a higher economic advantage as compared with known processes.
DK403485A 1985-09-04 1985-09-04 METHOD FOR PREPARING 4-AMINO-6-T.BUTYL-3-ETHYLTHIO-1,2,4-TRIAZIN-5-ON DK157366C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK403485A DK157366C (en) 1985-09-04 1985-09-04 METHOD FOR PREPARING 4-AMINO-6-T.BUTYL-3-ETHYLTHIO-1,2,4-TRIAZIN-5-ON

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK403485A DK157366C (en) 1985-09-04 1985-09-04 METHOD FOR PREPARING 4-AMINO-6-T.BUTYL-3-ETHYLTHIO-1,2,4-TRIAZIN-5-ON
DK403485 1985-09-04

Publications (4)

Publication Number Publication Date
DK403485D0 DK403485D0 (en) 1985-09-04
DK403485A true DK403485A (en) 1987-03-05
DK157366B DK157366B (en) 1989-12-27
DK157366C DK157366C (en) 1990-05-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
DK403485A DK157366C (en) 1985-09-04 1985-09-04 METHOD FOR PREPARING 4-AMINO-6-T.BUTYL-3-ETHYLTHIO-1,2,4-TRIAZIN-5-ON

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Also Published As

Publication number Publication date
DK157366C (en) 1990-05-21
DK157366B (en) 1989-12-27
DK403485D0 (en) 1985-09-04

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